| 摘要 |
Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula;;wherein each R1 is a Z1OZ2Z3SiZ4 group, wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z2 and Z3 independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein. |
| 主权项 |
1. An organosilica material, which is a polymer of at least one independent cyclic polyurea monomer of Formula wherein each R1 independently is a Z1OZ2Z3SiZ4 group, wherein
each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z2 and Z3 independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea; and optionally at least one other monomer selected from the group consisting of:(vii) an independent unit of Formula [Z5OZ6SiCH2]3 (II), wherein each Z5 represents a hydrogen atom, a C1-C4 alkyl or a bond to a silicon atom of another monomer, and each Z6 represents a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group, or an oxygen atom bonded to a silicon atom of another monomer;(viii) an independent unit of Formula Z7OZ8Z9Z10Si (III), wherein each Z7 represents a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer; and Z8, Z9 and Z10 are each independently selected from the group consisting of a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group, a nitrogen-containing C1-C10 alkyl group, a nitrogen-containing heteroaralkyl group, and a nitrogen-containing optionally substituted heterocycloalkyl group, and an oxygen atom bonded to a silicon atom of another monomer;(ix) an independent unit of Formula Z11Z12Z13Si—R2—SiZ11Z12Z13 (IV), wherein each Z11 independently represents a hydroxyl group, a C1-C4 alkoxy group or an oxygen bonded to a silicon atom of another comonomer; each Z12 and Z13 independently represent a hydroxyl group, a C1-C4 alkoxy group, a C1-C4 alkyl group or an oxygen bonded to a silicon atom of another monomer; and R2 a C1-C8 alkylene group, a C2-C8 alkenylene group, a C2-C8 alkynylene group, a nitrogen-containing C2-C10 alkylene group, an optionally substituted C6-C20 aralkyl and an optionally substituted C4-C20 heterocycloalkyl group;(x) an independent unit of Formula M1(OZ14)3 (V), wherein M1 represents a Group 13 metal and each Z14 independently represents a hydrogen atom, a C1-C6 alkyl or a bond to a silicon atom of another monomer;(xi) an independent unit of Formula (Z 15O)2M2-O—Si(OZ16)3 (VI), wherein M2 represents a Group 13 metal and each Z15 and each Z16 independently represent a hydrogen atom, a C1-C6 alkyl group or a bond to a silicon atom of another monomer; and(xii) a combination thereof. |
